公开(公告)号：US20060049755A1

公开(公告)日：2006-03-09

申请号：US10537587

申请日：2004-01-16

Applicant: Takashi Watanabe ,  Yoshiro Akai ,  Shirou Sakai

Inventor： Takashi Watanabe ,  Yoshiro Akai ,  Shirou Sakai

IPC: H01J40/06 ,  H01J31/50

CPC classification number: C22B26/10 ,  C22B5/04 ,  C23C14/14 ,  C23C14/243 ,  H01J1/35 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3426

Abstract: The present invention relates to an alkali metal generating agent and others for formation of a photo-cathode or a secondary-electron emitting surface capable of stably generating an alkali metal. The alkali metal generating agent is used in formation of a photo-cathode for emitting a photoelectron corresponding to incident light, or in formation of a secondary-electron emitting surface for emitting secondary electrons corresponding to an incident electron. Particularly, the alkali metal generating agent contains at least an oxidizer comprising at least one vanadate with an alkali metal ion as a counter cation, and a reducer for reducing the ion. An alkali metal generating device comprises at least the alkali metal generating agent and a case housing it, and the case is provided with a discharge port for discharging the vapor of the alkali metal.

Abstract translation: 本发明涉及一种用于形成能够稳定产生碱金属的光阴极或二次电子发射表面的碱金属发生剂等。 碱金属发生剂用于形成用于发射对应于入射光的光电子的光阴极，或者形成用于发射对应于入射电子的二次电子的二次电子发射表面。 特别地，碱金属发生剂至少包含至少一种含有碱金属离子作为抗衡阳离子的钒酸盐的氧化剂和用于还原离子的还原剂。 碱金属发生装置至少包括碱金属发生剂和容纳它的壳体，并且壳体设置有用于排出碱金属的蒸气的排出口。

公开(公告)号：US5623141A

公开(公告)日：1997-04-22

申请号：US322502

申请日：1994-10-14

Applicant: Xun Hou ,  Xiuqin Liu ,  Kezhou Ding

Inventor： Xun Hou ,  Xiuqin Liu ,  Kezhou Ding

IPC: G01T1/28 ,  G21K4/00 ,  H01J31/50 ,  H01J40/14

CPC classification number: G21K4/00 ,  G01T1/28 ,  H01J31/507 ,  H01J2201/3426

Abstract: A new type x-ray image intensifier has a specially developed x-ray sensit photocathode which has a low/high density alkali halogenide structure and therefore has high conversion efficiency of converting x-ray directly into photoelectrons or a field-assisted x-ray photocathode which has an extracting field and therefore is able to provide a high conversion efficiency of x-ray to photoelectron and high spatial resolution, even high time resolution. The new type x-ray image intensifier consists of the x-ray photocathode, a MCP and a phosphor screen, forming a proximity focus type photoelectric imaging device.A new portable x-ray diagnosis unit has the new type x-ray image intensifier and a new type compact x-ray source that has a very small volume, 30-90 kv acceleration voltage and a cone protective cover at the outlet of x-ray.

Abstract translation: 新型x射线图像增强器具有特别开发的具有低/高密度碱卤化物结构的x射线敏感光电阴极，因此具有高的将X射线直接转换成光电子的转换效率或场辅助x射线光电阴极 其具有提取场，因此能够提供X射线对光电子的高转换效率和高空间分辨率，甚至高时间分辨率。 新型x射线图像增强器由x射线光电阴极，MCP和荧光屏组成，形成近距离光电成像装置。 新的便携式x射线诊断单元具有新型x射线图像增强器和新型紧凑型x射线源，其具有非常小的体积，30-90kv的加速电压和在x轴的出口处的锥形保护盖， 射线。

公开(公告)号：US5371435A

公开(公告)日：1994-12-06

申请号：US983281

申请日：1992-11-30

Applicant: Keiichi Ohishi ,  Hideaki Suzuki ,  Hiroyuki Watanabe ,  Junichi Takeuchi

Inventor： Keiichi Ohishi ,  Hideaki Suzuki ,  Hiroyuki Watanabe ,  Junichi Takeuchi

IPC: H01J9/12 ,  H01J43/08 ,  H01J43/04

CPC classification number: H01J9/12 ,  H01J43/08 ,  H01J2201/3426

Abstract: There is disclosed a process for forming a photocathode having high quantum yield which comprises the first step of making a number of fine concavities and convexities in a surface of a substrate finished substantially in a mirror; the second step of blunting the fine concavities and convexities; and the third step of coating a photoelectron emissive material on the surface of the substrate.

Abstract translation: 公开了一种形成具有高量子产率的光电阴极的方法，该方法包括：在基材表面基本形成反射镜的基板的表面上形成多个精细凹凸的第一步骤; 打破精细的凹凸的第二步; 以及在基板的表面上涂覆光电子发射材料的第三步骤。

公开(公告)号：US2898498A

公开(公告)日：1959-08-04

申请号：US59883956

申请日：1956-07-19

Applicant: GEN ELECTRIC

Inventor： REYNOLD PHILIPP HERBERT

IPC: H01J1/34 ,  H01J40/06

CPC classification number: H01J1/34 ,  H01J40/06 ,  H01J2201/3426

公开(公告)号：US20060055322A1

公开(公告)日：2006-03-16

申请号：US10538642

申请日：2004-01-16

Applicant: Hiroyuki Sugiyama ,  Yoshiro Akai

Inventor： Hiroyuki Sugiyama ,  Yoshiro Akai

IPC: H01J40/06

CPC classification number: C22B26/10 ,  C22B5/04 ,  C23C14/14 ,  C23C14/243 ,  H01J1/35 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3426

Abstract: The present invention relates to an alkali metal generating agent and others for formation of a photo-cathode or a secondary-electron emitting surface capable of stably generating an alkali metal. The alkali metal generating agent is used in formation of a photo-cathode for emitting a photoelectron corresponding to incident light, or in formation of a secondary-electron emitting surface for emitting secondary electrons corresponding to an incident electron. Particularly, the alkali metal generating agent contains at least an oxidizer comprising at least one tungstate with an alkali metal ion as a counter cation, and a reducer for reducing the ion. An alkali metal generating device comprises at least the alkali metal generating agent and a case housing it, and the case is provided with a discharge port for discharging the vapor of the alkali metal.

公开(公告)号：US5498926A

公开(公告)日：1996-03-12

申请号：US234142

申请日：1994-04-28

Applicant: Hiroyuki Kyushima ,  Koji Nagura ,  Yutaka Hasegawa ,  Eiichiro Kawano ,  Tomihiko Kuroyanagi ,  Akira Atsumi ,  Masuya Mizuide

Inventor： Hiroyuki Kyushima ,  Koji Nagura ,  Yutaka Hasegawa ,  Eiichiro Kawano ,  Tomihiko Kuroyanagi ,  Akira Atsumi ,  Masuya Mizuide

IPC: H01J43/20 ,  H01J9/12 ,  H01J9/18 ,  H01J43/04 ,  H01J43/10 ,  H01J43/12 ,  H01J43/22

CPC classification number: H01J43/04 ,  H01J43/10 ,  H01J43/12 ,  H01J43/22 ,  H01J9/12 ,  H01J9/18 ,  H01J2201/32 ,  H01J2201/3426

Abstract: A photomultiplier which can be easily made compact has a dynode unit constituted by stacking a plurality of stages of dynode plates in an electron incident direction in a vacuum container constituted by a housing and a base member integrally formed with the housing. Each dynode plate has an engaging member engaged with a connecting pin for applying a voltage at a side surface thereof. Through holes for guiding the connecting pins from the outside of the container are formed in the base member. Each engaging member is arranged not to overlap the remaining engaging members in the stacking direction of the dynode plates. The arrangement position of each engaging member and the arrangement position of the through hole for guiding the corresponding connecting pin to be connected are matched with each other.

Abstract translation: 可以容易地制造的光电倍增器具有通过在由壳体和与壳体一体形成的基座构件构成的真空容器中沿电子入射方向堆叠多级倍增极板而构成的倍增电极单元。 每个倍增器板具有与用于在其侧表面施加电压的连接销接合的接合构件。 在基部构件上形成有用于从容器的外部引导连接销的通孔。 每个接合构件布置成在倍增极板的层叠方向上不与剩余的接合构件重叠。 每个接合构件的布置位置和用于引导要连接的相应连接销的通孔的布置位置彼此匹配。

公开(公告)号：US5205902A

公开(公告)日：1993-04-27

申请号：US789975

申请日：1991-11-12

Applicant: Jerry R. Horton ,  G. William Tasker

Inventor： Jerry R. Horton ,  G. William Tasker

IPC: H01J9/12 ,  H01J43/24

CPC classification number: H01J43/246 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3423 ,  H01J2201/3426

Abstract: A microchannel plate and method is disclosed. In a preferred embodiment the microchannel plate is a water of anisotropically etchable material having been subjected to a directionally applied flux of reactive particles against at least one face of the wafer in selected areas corresponding to microchannel locations. The flux removes material from the selected areas to produce microchannels in the wafer in accordance with the directionality of the applied flux.

Abstract translation: 公开了一种微通道板和方法。 在优选实施例中，微通道板是各向异性可蚀刻材料的水，其已经在对应于微通道位置的选定区域中经过定向施加的反应性颗粒的流量抵靠晶片的至少一个面。 通量从选定区域去除材料，以根据施加的焊剂的方向性在晶片中产生微通道。

公开(公告)号：US5118952A

公开(公告)日：1992-06-02

申请号：US605008

申请日：1990-10-24

Applicant: Kiichi Sakamoto ,  Hiroshi Yasuda ,  Jinko Kudou ,  Akio Yamada

Inventor： Kiichi Sakamoto ,  Hiroshi Yasuda ,  Jinko Kudou ,  Akio Yamada

IPC: G03F1/00 ,  G03F1/20 ,  H01J1/34 ,  H01J9/12 ,  H01J37/317 ,  H01L21/027

CPC classification number: B82Y10/00 ,  B82Y40/00 ,  H01J1/34 ,  H01J37/3175 ,  H01J9/12 ,  H01J2201/3425 ,  H01J2201/3426 ,  H01J2237/31779

Abstract: A photo cathode used for an electron image projection apparatus has a silver layer as a photo electric material and a layer of an alkali metal or alkaline earth metal, such as cesium, coated on the silver layer. The cesium is as thick as several atomic layers, and reduces the work function of the photo cathode. The silver layer may be coated all over a substrate, and portions other than the cathode may be masked by a non photoelectric metal, or non transparent metal, such as platinum. Or, the silver layer may be patterned on the layer of a non photoelectric metal coated on the substrate. An excitation light to the photo cathode may be irradiated onto the surface of the silver, or onto the back of the silver layer through a transparent substrate. After depositing the cesium layer on the silver, the layers are heated in a vacuum at 50.degree. to 200.degree. C., thus a contrast ratio, i.e. ratio of electron current from the cathode and from the non cathode portion, is achieved as high as 20. This low temperature heat processing prevents lateral diffusion of the mask metal, resulting in a sharp edge of the cathode pattern. Silver and the cesium thereon are not susceptive to open air atmosphere, thus allowing long life and easy handling for an efficient lithography processing. The low absorption edge of the silver allows the use of a high pressure mercury lamp whose light is easily focused by a lens.

公开(公告)号：US5086248A

公开(公告)日：1992-02-04

申请号：US395586

申请日：1989-08-18

Applicant: Jerry R. Horton ,  G. William Tasker

Inventor： Jerry R. Horton ,  G. William Tasker

IPC: H01J9/12 ,  H01J43/04 ,  H01J43/24

CPC classification number: H01J43/246 ,  H01J9/12 ,  H01J2201/32 ,  H01J2201/3423 ,  H01J2201/3426

Abstract: Microchannel plates (MCPs) and channel electron multipliers (CEMs) having channels etched by a directionally applied flux of reactive particles are disclosed. The channels are activated with thin film dynodes. Various embodiments including monolithic and stacked devices are disclosed. Activation of the channels is achieved by various techniques including CVD, LPD and native growth by oxidation.

公开(公告)号：US5066888A

公开(公告)日：1991-11-19

申请号：US401887

申请日：1989-08-31

Applicant: Cornelis Van Der Marel ,  Arnoldus D. J. Smoorenburg

Inventor： Cornelis Van Der Marel ,  Arnoldus D. J. Smoorenburg

IPC: H01J9/12 ,  H01J9/395

CPC classification number: H01J9/12 ,  H01J9/395 ,  H01J2201/3425 ,  H01J2201/3426

Abstract: Cesium dispenser with a metal carrier (for example, Al or Ag) in which silicon-alkali metal compounds or germanium-alkali metal compounds are present along the grain boundaries of the carrier material.